A 3.0m long uniform board of mass 12kg rests on a fulcrum located 1.0m from its left end. A child of mass 25kg sits at the left end of the board. Where, measured from the fulcrum, should a second child of mass 35kg sit on the right side so that the board remains balanced?
a) 0.71m to the right
b) 1.08m to the right
c) 0.54m to the right
d) 0.89m to the right